Apparatus for making coils.



y R. VARLBY. APPARATUS FOB. MAKING COIL'S.

APPLICATION FILED MAY 9, 1912,.

Pentea Dec. 17,1912.

mvENTon 3 SHEETS-SHEET 1.

ULJM/ wf VAR'BEY APPARATUS FOR MAKING GOILS. APPLICATION FILED MAY 9. 1912. t

1,047,721. Patented B89121912. l

3 SHEETS-SHEET 2.

wlTNEssEs y INVENTOB MQW- WMM/U w I #v 7% (QM,

' R. VARLEY.

APPARATUS FOR MAKNG COILS. APPLICATION FILED mil-9,1912.

3 SHEETS-SHEET 3.

WITNESSES *a* -C- INVENTOFI www `rand en titled UNITED sTATEsl PATENT oEEIoE..

RICHARD vAELEY,

MAGNET COMPANY, or JERSEY JERSEY.

0F ENGLEWOOD, NEW' JERSEY,

' CITY,

Specification of Letters Patent.

ASSIGNOR TO VARLEY DUPLEX NEW JERSEY, A 4CORIPORATION OF NEW' APPARATUS FOR MAKING COILS.

Patented Dec. 17,1912.

Original application filed october 14, 1911, Serial No. $54,755.4 Divided and this application filed May 9,

To all whom 'it may concern Be it-known that I, RICHARD VARLEY, a\ citizen of the United States of America, andresiding at Englewood. in 'the county o Bergen and State of New Jersey, have invented new and useful Apparatus for Mak. ing Coils, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form part of this specification.

The object of my invention is to provide new, simple and efficient apparatus for inakingelectric coils. As such an apparatus I aim to provide means whereby a coil maybe quickly and accurately wound. I also aim to provide means whereby a plurality of coils may be contemporaneously formed. In making the coil provision is made for the presentation to and incorporation in the coil, of strips of binding element in such manner as to firmly tie or bind against displacement the turns of the winding.

This case is a division of my application, Serial No. 654,755 filed October 14, 1911, Apparatus for making coils.

I will now describe my invention so that others skilled in the art to which it appertains may understand and construct the same. IVhile reference is had, in such description, to the attached drawing, I do not desire to limit myself 'togsuch apparatus as it will be premised many changes may made therein without departing from the spirit thereof.

For instance,the coil foi-mers of such apparatus may be shaped for the reduction of circular or other shaped coils other than the angular shape shown.

Figure 1 is a side elevation of apparatus illustrating my invention and showing provision for the making of a plurality of coils, preferably in contemporaneous manner; Fig. 2 isa top planview Yof the same; Fig. 3 is an end view of one of the coilvmandrels or forniers and showing coil winding thereon; Fig. 4 is a perspective view of a coil former, showing a coil thereon and having, partly in full lines and partly in dotted lines, indicated strips of binding element incorporated in the coilg'Fig. 5 is a similar view showing a modified'construction of coil former for adaptation thereof to reception of narrow binding elements, such as strands of wire;

Fig. 6 is an end view indicating, largely in diagram, severing of coil former; Fig. 9

Vthe accompanying drawings,

of a coilforiner, and

\ connecting strips of binding element lying intermediate adjoining coil formers; Fig. is a fragmentary perspective `view of acorner portion of the coil former and showing `means for terminally clamping strips of binding tape against displacement Fig.' 8` ,is a perspective view of a coil made by my improved apparatus and showing the condition thereof preparatory to its Aremoval from a showing manner of supplying a plurality of coil formers, withbinding tape, and preferably from a common source of supply;

Fig. 10 Is a simi-lar View showing mannerv of presenting binding tape to the coils in the progress of making, this View illustrating, primarily, the feeding of tape adapted to form binding element lying within the body of the coil as will be hereinafter more fully described; Fig. 11 is a similar fragmentary view showing means for corrugating the tape prior coil; Fig. 12 isV an enlarged sectional view through a plurality of coil formers, and showing modified form of means for coi'- rugating the tape; Fig. '13 is a-crosssectional view of a portionof a coil former and indicating partly in diagram, manner of anchoring portions of binding tape, within the coil; Fig. 14 is a. similar view showing manner of binding different portions of the coil with separate strips of binding element, and as applied to angular coils, struction adaptable for .such purpose; Figs. 15 and 16 are perspective views of modified forms of binding tape used in connection with my apparat-us and Fig. 17"is a plan view of an angular coil made by my apparatus.

In carrying out my invention preferably provide for the contemporaneous formation of coils, and in describing provided and shown in I illustrate in connection there-with a method of making coils `described in my co-pending application Serial No. 654,7 52.V I do not, however, desire to limit my apparatus to the carrying out of any particular method. The method herein disclosed shows the feeding of binding tape or `strip to coil mandrels and coils either preparatory to winding or duringl of a plurality the mechanism so to it-s application to the binding of the corners of'` the coil Vformer showing conis a diagrammatic view the winding or both, which binding element may be used as a temporary or provisional `is incorporated in and becomes part of the ing mandrel.

coil. However, certain portions vof a strip binder, such as a strip supericially Wrapped about the coil to enable it -to keep its shape in certain respects and to assist portions of other tape carried by the coil, as Will appear hereinafter. The application of the tape, if to be a superficial binder, may iirst be to the mandrels or formers after which the Winding of the coil may proceed, and during the Winding-portions of binding strip are supplied to the coilat intervals in the de velopment of such Winding.

The binding tape may comprise strips of' paper, cambric, or very thin ber-board, and is preferably so incorporated as to allow of end or terminal extension beyond the body of the coil, which extension may be incorporated in layers of the Winding or may be bound to superficial turns of the coil at the ends thereof so as t-o reinforce such turns and the layers as a Whole against displacement. Binding of the ends of the tape against the ends of the coil may be effected by Wrapping the coil about in the plane of the extension by certain portions of the same tape or bythe employment of a superficial tape such as that rst presented to the coil- Or, in lieu of the tape applied to the outer faces of the coil, I may use a metallic binder such as strands of small gage Wire. v

The numeral 2 represents a rotary shaft or spindle Which may form the main operative element of a coil machine. `I do not disclose in the drawings the frame-Work or housing or like construction for t-he reason that these may be supplied by the mechanic and may comprise the suitable mount-ings of ceiling machines such as the Varley coil l machines. HoWever,.I indicate by the numeral 2 bearings in Which the spindle 2 may be journaled. Carried by the spindle 2 are coil formers or mandrels 3, Whichmay be of the usual construction in so far as concerns their separability for the removal of completed coils. These formers are provided With end disks or members 4, the spacing of which from one another determines the length of the coil to be Wound upon the former. In the disks 4 I form recesses 5 Which preferably extend' from the periphery of the disk'in each casel to the body of the former, or substantially to the body, as shown in Figs.'12, 13-and 14. Vith a pluralityof coil formers mounted in a common manner on the spindle 2 the recesses 5 of the diiferent formers may 'lie in alinement or in register with one another as shown in Figs. 1 and 2, so that tapeA may be fedfrom a common source of supply 6 in its presentation to the plurality of coils or m ndrels for the reason that the said recesses 5 enable binding tapes a' to be so presented and applied I s therefor and superpositioning ci me .y lurality are employed att-he e pointsin the development of the coiand also proper disposition of tapes 'at internals along the `Winding or body of the coil. But a further purpose and thereby b important feature oi my inventionis that it enables the application of tapes to the mandrels or coils in such manner as to allow of extensions of 'tape from the ends of the coils so as to overcome abortive binding action due to the drawing in of the terminal portions of binding tape, arising from the corrugating action set up by the application of the turns ofpwire upon the tapes as such turns go into position i'n alternate or staggered mannerwith respect to the underlying turns.

The source of supply 6 of binding tape may be in the form of suitable rolls 7 Which may be carried by suitable shafts or journals 8. In Figs. l and 2 I show these rolls 7 as being mounted in a suitable support 9,

carried so as to rotate With the mandrels 8. u

rIhis insures proper positioning Aof the sevveral rolls with respect to the alining recesses 5 of the formers ormandrels. If the source of supply 6 of tape is not "so associated with the coil formers 3 as to rotate in unison therewith, that is, if the' source of supply is stationed at a fixed or practically .fixed pointfrom the rotatory mandrels, it would be necessary7 of course, to sever the supply of tape requisite to thebinding contemplated. Ifthesupply is made to rotate With the coil formel; or mandrels, as indicated in Figs. 1 and 2, the necessit. lof severing the tape does not arise until further application thereof to other portions of the Winding. By mounting the support 9 close to its rcspective former 3 such intimate association serves to prevent displacement of the tape lfrom the recesses 5 at that end of the spindle 2. The opposite end of the tape is held by clamping means l0 which may comprise a suitable spring clip under Which the paper is inserted as it is supplied to the mandrel. This clip is shown in a very clear manner in Fig. 7 and as com rising the resilient leaf 11 which coacts with a face 12 to the former 3 to clamp the tape.

In Fig. 10 I shovs7 corrugating elements 13 between Which the tape a may be passed in its travel from the source of supply t to the coil formers 3. This corrugatin'g means 13 is of such character as to corrugate the tape at intervals so disposed as to be capable of assuming positions intermediate the different formers 3 upon -proper adjustment of such tape. These corrugations are indi-l cated at I), and the object thereof'is to provide for suchpresentation of tape to coils in which the gage of Winding is of large size as to set up corrugating action on the of. This is an important feature tape, with resultant placing of injurious strains on such tape, as the turns ofA wire assume staggered ferent layers. Thile providing the corrugations b the tape is thereby rendered capable of 'movement without straining there.- ofl my `apparatus for, unless provision is made to allow of this corrugating action by the wire to take place without injurious strains on the tape, fracture of the tape might occur at points within the coil and thereby depreciably affect the binding action of such tapes. As clearly=shown in Fig. 12 the tape may freely'move by reason of the`corrugation b which constitutes a reservation intermediate the coils.

. In Fig. 11 I sho-w the corrugating means 13 as adapted for continuous corrugation of the tape as it p asses from the source of supply 6. By continuously corrugating the tape strains are obviated by reason ofthe fact ,that the corrugations adjust themselves. to

the contour of the wire vas it is applied. However, in lieuof corrugating the tape I may employ tape capable of separating veryreadily at points intermediate the coils. Such a tape c is shown in Figs. 15 and 16 and as having corrugations Z or Vslots'e respectively so spaced along the tape as to be Vcapable coils; the application of'the winding and resultant take-up of the tape causes separation at the points of perforation or other in# cisions.

In Figs. 1` and 6 the numeral 14 indicates severing apparatus whichmay be presented tothe mandrels for the purpose of cutting the tapes between the several mandrels. This apparatus is employed in cases where the tape is not severed under the corrugating action of the winding. vAs shown in Fig. 6, it may comprise a suitable' knife 15 mounted as by means of a pivot 16 so as to be capable of ready presentation and retraction from the tapesA b as the coiling man drels are rotated. 1 The mandrels Smay eachbe provided with clamping means 10 disposed at each side thereof to permit of individual holding of tape in its application to the coil. As shown in Fig. 18, the tape may be passed back and forth in such a manner as to be terminally held by the clamps while layers or turnsbf wire are applied to anchor'the same4 within thecoilu` However, the clamping means is not limited to such manipulation of the tape but may be used in any desira'ble manner. Y l In Fig. 14 I show in cross section the corner--of the coil former on a line passing through corner recesses 3 which Vmay receive windingtape f for the'binding of the corners of the angular' coil. These recesses are shown as communicating with the winding relationshipv with the dif-v be varied as desired n form part of the present invention.

of assuming positions between the invention.

ed to rotate in unison and having a plurality zoneof the former on an angle through the `disk 4 for the purpose of providing'a thick'- ness of metal as at h atl the corner of the mandrel which is weakened by the close positions of the recesses 5 in the particular mandrels shown. The object in providing for-the binding of the corner of the coil is to take care of the tendency of the corner to spread or fan out upon its removal from between the disk 4'of the mandrel.'n The mannerl of applying the binding element f may as this method does no t.

Where binding tape is first fed to the mandrels and so as to lie iii-recesses 5 or 5 and the winding of the coil proceeded with after which the coil may be bound with such binding tape, I preferably so space the mandrels as to conserve space and so apply the tape as tol provide for a gathering or accumulation thereof iat points p, or points inter'- mediate the mandrels, as shown in Fig. 49, so 4that sutlici'ent length of tapeis provided for the wrapping of the coil of each mandrel.A In Fig. 17 I show the coil 17 as being superficially wrapped by means of binding tape, as indicated at 18. However, instead of wrapping the coil with tape, the mandrel 3 may be provided with suitable recesses 19 for the accommodation of strands 0f small gage wire which the outer tape. This construction isshown in Fig. 5v wherein the strands of wire are indicated by the numeral 20.

It will be apparent that many changes may be made in my apparatus as above de-.. scribed, which would not be departures from While` apparatus as adapted'tothe formation of aV -plurality of coils contemporaneously, I may wind the coils in a single manner, for

What I claim and desire to'secure by'Letters Patent is: j

. 1. In apparatus for making electric coils,

a plurality of spool-like coil formers mountof tape-guiding pockets registering with one another.

2. In apparatus for making electric coils, a plurality of coil formers mounted-to ro tate in unison and having alining tape-guiding pockets whereby tape may be fed in a manner commonto all the formers. l

3. In apparatus for making electric coils, a plurality of coil formers provided with tape-guiding means for enabling application of tape thereto Aon a common line substanf tially coincident with the plane `of the windi i i ing face 'of the former. .v

4. In apparatus for making electric coils, a' plurality'of formers pocketsfor recesses whereby strips of binding element may extend` from one coil for-y mer to ing coils.

another during the progress of wind-i I may be employed in lieu of I have spoken ofjthe having registering 5. In apparatus for making elecric coils, ment of the coil, in a manner common to all @C a plurality of coil ormers having registerthe coil for-mers.

ing pockets or recesses whereby tape may be fed on a connnon line to the several formers m during the progress of making coils.

6. ln apparatus for making. electric coils,

a plurality of coil formers having registering pockets or recesses whereby tape may be fed in several parallel planes in the develop- I ln testimony whereof, l have hereunto set y hand.4

RICHARD van@ Y. Witnesses M. A; KELLER, M. BARTH. 

